TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
D−16
DGN−8
D−8
TPS2052B, TPS2053B, TPS2054B
www.ti.com
SLVS514E–APRIL 2004–REVISED JANUARY 2006
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
FEATURES
APPLICATIONS
•
Heavy Capacitive Loads
•
•
•
•
70-mΩ High-Side MOSFET
•
Short-Circuit Protections
500-mA Continuous Current
Thermal and Short-Circuit Protection
TPS2041B/TPS2051B
D AND DGN PACKAGES
(TOP VIEW)
TPS2042B/TPS2052B
D AND DGN PACKAGES
(TOP VIEW)
Accurate Current Limit
(0.75 A min, 1.25 A max)
GND
IN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
OC
GND
IN
1
2
3
4
8
7
6
5
OC1
OUT1
OUT2
OC2
†
•
•
•
•
•
•
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
IN
EN1
†
†
EN
EN2
TPS2043B/TPS2053B
D PACKAGE
TPS2044B/TPS2054B
D PACKAGE
Undervoltage Lockout
(TOP VIEW)
(TOP VIEW)
Deglitched Fault Report (OC)
No OC Glitch During Power Up
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
IN1
OC1
OUT1
OUT2
OC2
OC3
OUT3
NC
GND
IN1
OC1
OUT1
OUT2
OC2
†
†
EN1
EN1
Maximum Standby Supply Current:
†
†
EN2
EN2
1-µA (Single, Dual) or 2-µA (Triple, Quad)
GND
IN2
GND
IN2
OC3
OUT3
OUT4
OC4
•
•
•
•
Bidirectional Switch
†
†
EN3
EN3
Ambient Temperature Range: -40°C to 85°C
ESD Protection
NC
†
NC
EN4
†
All enable inputs are active high for the TPS205xB series.
NC − No connect
UL Recognized, File Number E169910
DESCRIPTION
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive
loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET
power switches for power-distribution systems that require multiple power switches in a single package. Each
switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to
control the power-switch rise times and fall times to minimize current surges during switching. The charge pump
requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current
to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When
continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains
off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A
typically.
GENERAL SWITCH CATALOG
TPS2042B 500 mA
TPS2052B 500 mA
80 mΩ, dual
80 mΩ, dual
80 mΩ, quad
33 mΩ, single
80 mΩ, single
TPS201xA 0.2 A − 2 A
80 mΩ, triple
80 mΩ, quad
TPS2046
TPS2056
TPS2062
TPS2066
250 mA
250 mA
1 A
TPS202x
TPS203x
0.2 A − 2 A
0.2 A − 2 A
1 A
TPS2080
500 mA
500 mA
500 mA
250 mA
250 mA
250 mA
260 mΩ
1.3 Ω
TPS2014
TPS2015
600 mA
1 A
TPS2100/1
TPS2081
TPS2082
TPS2090
TPS2091
TPS2092
IN1 500 mA
IN2 10 mA
TPS2043B 500 mA
TPS2053B 500 mA
TPS2047 250 mA
TPS2057 250 mA
IN1
IN2
TPS2085
500 mA
500 mA
500 mA
250 mA
TPS2041B 500 mA
TPS2051B 500 mA
TPS2044B 500 mA
TPS2054B 500 mA
TPS2048 250 mA
TPS2058 250 mA
OUT
TPS2086
TPS2087
TPS2095
TPS2102/3/4/5
IN1 500 mA
IN2 100 mA
TPS2045
TPS2055
TPS2061
TPS2065
250 mA
250 mA
1 A
TPS2096 250 mA
TPS2097 250 mA
1 A
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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